Retractor



FIG. 1 is a perspective view of a dental lip retractor;

FIG. 2 is a bottom plan view of the retractor of FIG. 1;

FIG. 3 is a side elevation view of the retractor of FIG. 1;

FIG. 4 is a top plan view of the retractor of FIG. 1;

FIG. 5 is a side elevation view of the retractor of FIG. 1 from another angle; and,

FIG. 6 is a side elevation view of the retractor of FIG. 1 from another angle. 

The ornamental design for a retractor, as shown and described. 